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CUU own 25% Schaft Creek: proven/probable min. reserves/940.8m tonnes = 0.27% copper, 0.19 g/t gold, 0.018% moly and 1.72 g/t silver containing: 5.6b lbs copper, 5.8m ounces gold, 363.5m lbs moly and 51.7m ounces silver; (Recoverable CuEq 0.46%)

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Silver
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Dogger 12
Nov 23, 2011 12:13AM
Re: Silver
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JohnnyAugust
Nov 23, 2011 12:34AM
The 2007 resource estimate shows 69.4 million ounces of silver.

2011 Resource Estimate
The Measured and Indicated mineral resource for the Schaft Creek deposit (at a 0.20% copper equivalent cut-off) totals 1.01 billion tonnes grading 0.27% copper, 0.017% molybdenum and 0.18g/t gold (copper equivalent 0.46%) containing 6.1 billion pounds copper, 383 million pounds molybdenum and 5.8 million ounces gold
The Inferred mineral resource for the Schaft Creek deposit (at a 0.20% copper equivalent cut-off) totals a further 283.6 million tonnes grading 0.24% copper, 0.011% molybdenum and 0.15 g/t gold (copper equivalent 0.39%) containing 1.5 billion pounds copper, 69 million pounds molybdenum and 1.3 million ounces gold

This resource estimate reports significantly higher average copper grade in the Measured mineral resource (0.36%) category, the Indicated mineral category (0.27%) and the Inferred mineral resource (0.24%) category compared to the Measured mineral resource category (0.30%), the Indicated mineral category (0.23%) and Inferred mineral resource category (0.14%) set out in the preliminary feasibility study on the Schaft Creek deposit dated September 2008.

2007 Resource Estimates:
The Measured and Indicated resource at Schaft Creek has increased to 1.393 billion tonnes averaging 0.25% copper (7.7 billion pounds), 0.18 gpt gold (8.1 million ounces), 0.019% molybdenum (584 million pounds) and 1.55 gpt silver (69.4 million ounces) at a 0.20% copper equivalent ("CuEq") cutoff. This represents a 41% increase (402.2 million tonnes) in Measured and Indicated resources and increases of 27% copper, 33% gold, 48% molybdenum and 23% silver in contained metals over that reported in the Giroux and Ostensoe report of 2004.

2003 RE               cu-eq   Tonnes  Cu      Mlb    Gold  Silver CuEq
                  Giroux M&I 0.20       991    0.28      0.018     0.19    1.77    N.A
                  Measured   0.55       100.7  0.43      0.028     0.32    1.85    0.65
                  Indicated  0.55       108.3  0.40      0.034     0.36    1.19    0.66
Total M&I 0.55      209.0  0.41      0.031     0.34    1.51    0.66
Inferred  0.55       2.4   0.53      0.035     0.15    2.11    0.71
Notes: (1): ("M and I") stands for Measured and Indicated. "Giroux" refers to the resource report by Giroux & Ostensoe dated June 30, 2003 and amended May 20, 2004
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Re: Silver
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Dogger 12
Nov 23, 2011 12:58AM
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